SecCmsEncoder.h

/* * Copyright (c) 2004 Apple Computer, Inc. All Rights Reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ *//*! @header SecCmsEncoder.h @copyright 2004 Apple Computer, Inc. All Rights Reserved. @availability 10.4 and later @abstract CMS message encoding @discussion The functions here implement functions for encoding Cryptographic Message Syntax (CMS) objects as described in rfc3369. A SecCmsEncoder object is used to encode CMS messages into BER. */#ifndef _SECURITY_SECCMSENCODER_H_#define _SECURITY_SECCMSENCODER_H_ 1#include <Security/SecCmsBase.h>#if defined(__cplusplus)extern"C" {
#endif/*! @functiongroup Streaming interface *//*! @function @abstract Set up encoding of a CMS message. @param outputfn callback function for delivery of BER-encoded output will not be called if NULL. @param outputarg first argument passed to outputfn when it is called. @param dest If non-NULL, pointer to a CSSM_DATA that will hold the BER-encoded output. @param destpoolp Pool to allocate BER-encoded output in. @param pwfn callback function for getting token password for enveloped data content with a password recipient. @param pwfn_arg first argument passed to pwfn when it is called. @param encrypt_key_cb callback function for getting bulk key for encryptedData content. @param encrypt_key_cb_arg first argument passed to encrypt_key_cb when it is called. @param detached_digestalgs digest algorithms in detached_digests @param detached_digests digests from detached content (one for every element in detached_digestalgs). @result On success a pointer to a SecCmsMessage containing the decoded message is returned. On failure returns NULL. Call PR_GetError() to find out what went wrong in this case. @availability 10.4 and later */extern OSStatus
SecCmsEncoderCreate(SecCmsMessageRef cmsg,
SecCmsContentCallback outputfn, void *outputarg,
CSSM_DATA_PTR dest, SecArenaPoolRef destpoolp,
PK11PasswordFunc pwfn, void *pwfn_arg,
SecCmsGetDecryptKeyCallback encrypt_key_cb, void *encrypt_key_cb_arg,
SECAlgorithmID **detached_digestalgs, CSSM_DATA_PTR *detached_digests,
SecCmsEncoderRef *outEncoder);
/*! @function @abstract Take content data delivery from the user @param encoder encoder context @param data content data @param len length of content data @result On success 0 is returned. On failure returns non zero. Call PR_GetError() to find out what went wrong in this case. @availability 10.4 and later */extern OSStatus
SecCmsEncoderUpdate(SecCmsEncoderRef encoder, constvoid *data, CFIndex len);
/*! @function @abstract Abort a (presumably failed) encoding process. @param encoder Pointer to a SecCmsEncoderContext created with SecCmsEncoderCreate(). @availability 10.4 and later */externvoid
SecCmsEncoderDestroy(SecCmsEncoderRef encoder);
/*! @function @abstract Signal the end of data. @discussion Walks down the chain of encoders and the finishes them from the innermost out. @param encoder Pointer to a SecCmsEncoder created with SecCmsEncoderCreate(). @result On success 0 is returned. On failure returns non zero. Call PR_GetError() to find out what went wrong in this case. @availability 10.4 and later */extern OSStatus
SecCmsEncoderFinish(SecCmsEncoderRef encoder);
/*! @functiongroup One shot interface *//*! @function @abstract BER Encode a CMS message. @discussion BER Encode a CMS message, with input being the plaintext message and outBer being the output, stored in arena's pool. */extern OSStatus
SecCmsMessageEncode(SecCmsMessageRef cmsg, const CSSM_DATA *input, SecArenaPoolRef arena,
CSSM_DATA_PTR outBer);
#if defined(__cplusplus)}
#endif#endif /* _SECURITY_SECCMSENCODER_H_ */